SUN Shui-juan,WEN Qian,XIE Ping.Research on the Sustainability of Agricultural Land Based on Emergy Analysis in Zhoukou City[J].Research of Soil and Water Conservation,2012,19(04):212-217.
基于能值分析的周口市农用地可持续利用研究
- Title:
- Research on the Sustainability of Agricultural Land Based on Emergy Analysis in Zhoukou City
- Keywords:
- emergy analysis; agricultural land; sustainability; Zhoukou City
- 分类号:
- F301.24
- 摘要:
- 以河南省周口市为例，选取2000—2009年统计数据，利用能值分析法对周口市农用地的可持续利用性进行了研究。结果表明：（1）农业投入主要以购买资源投入为主，其所占总能值投入比重达到90%以上，且工业能投入很大程度上依赖于化肥、农药的投入，降水量显著影响可更新环境资源的投入；（2）农业产出以种植业和畜牧业为主，所占比例达到99%左右，渔业和林业所占比重过低，农业产出结构比较单一；（3）农用地的使用在经济可持续性方面取得了初步成效，但在生态可持续性和社会可持续性方面却处于较低水平，可持续利用指数显示农业系统具有很大的活力和较大的发展潜力；不可持续性表现在化肥和农药的大量投入以及单一的农业产出结构。
- Abstract:
- Taking Zhoukou City of He’nan Province as an example, and selecting statistical data from 2000 to 2008, this paper studied the sustainability of agricultural land in Zhoukou City from the perspective of energy. The results showed that: agricultural inputs were mainly dominated by the purchasing resources, the proportion of which exceeded 90% of the total energy input, and industrial inputs largely depended on the inputs of fertilizer and pesticide, precipitation significantly affected the investment of renewable environmental resources; agricultural outputs were mainly dominated by the crop growth and livestock, the proportion of which about 99%, the fishery and forestry took a very low percentage, the structure of agricultural outputs was relatively simple; the economic sustainability of agricultural land use has achieved initial success, while ecological sustainability and social sustainability were at lower levels, the index of sustainable use indicated that agricultural system had great vitality and a greater potential for development; the unsustainability was expressed by a large number inputs of fertilizers, pesticides and a single structure of agricultural outputs.
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备注/Memo
收稿日期:2012-1-29;修回日期:2012-3-13
基金项目:国家自然科学基金（40901120）
作者简介:孙水娟（1985- ），女，河南焦作人，硕士研究生，主要研究方向为土地资源利用。E-mail：ssjhenan1985@126.com。
通讯作者:文倩（1974- ），女，辽宁本溪人，博士，副教授，硕士生导师，主要从事土地资源利用与可持续发展研究。E-mail：wenqian23@163.com。